scholarly journals The Effects of Biochar and Its Combination with Compost on Lettuce (Lactuca sativaL.) Growth, Soil Properties, and Soil Microbial Activity and Abundance

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Dalila Trupiano ◽  
Claudia Cocozza ◽  
Silvia Baronti ◽  
Carla Amendola ◽  
Francesco Primo Vaccari ◽  
...  
Keyword(s):  
Plant Growth ◽  
Organic Fertilizer ◽  
Crop Productivity ◽  
Total Carbon ◽  
Growth And Yield ◽  
Chemical Characteristics ◽  
Total Biomass ◽  
Nitrogen And Phosphorus ◽  
Positive Effects ◽  
Compost Amendment

Impacts of biochar application in combination with organic fertilizer, such as compost, are not fully understood. In this study, we tested the effects of biochar amendment, compost addition, and their combination on lettuce plants grown in a soil poor in nutrients; soil microbiological, chemical, and physical characteristics were analyzed, together with plant growth and physiology. An initial screening was also done to evaluate the effect of biochar and compost toxicity, using cress plants and earthworms. Results showed that compost amendment had clear and positive effects on plant growth and yield and on soil chemical characteristics. However, we demonstrated that also the biochar alone stimulated lettuce leaves number and total biomass, improving soil total nitrogen and phosphorus contents, as well as total carbon, and enhancing related microbial communities. Nevertheless, combining biochar and compost, no positive synergic and summative effects were observed. Our results thus demonstrate that in a soil poor in nutrients the biochar alone could be effectively used to enhance soil fertility and plant growth and biomass yield. However, we can speculate that the combination of compost and biochar may enhance and sustain soil biophysical and chemical characteristics and improve crop productivity over time.

scholarly journals Effect of different compost concentrations on the growth yield of Bombax Ceiba (Simal)

2022 ◽  
Author(s):  
Irfan Ahmad ◽  
Muhammad Haroon U Rashid ◽  
Shahid Nawaz ◽  
Muhammad Asif ◽  
Taimoor Hassan Farooq ◽  
...  
Keyword(s):  
Plant Growth ◽  
Field Experiment ◽  
Organic Fertilizer ◽  
Growth Yield ◽  
Dry Weight ◽  
Pot Experiment ◽  
Growth And Yield ◽  
Fresh Weight ◽  
Positive Effects ◽  
Compost Application

<i>Bombax ceiba</i> is an important agroforestry tree species widely distributed throughout the world. It has been extensively grown and planted for eras in hot and dry regions and high humidity zones of southern Asia. The main objective of this research was to evaluate the growth response of <i>B. ceiba</i> in response to different compost treatments. Different morphological traits (plant height, stem height, root length) and biomass (shoot fresh weight, shoot dry weight, root fresh weight, root dry weight and root/shoot ratio) were measured. Two experiments (pot experiment = seedlings) and (field experiment = saplings) were conducted simultaneously. Different compost treatments: (T<sub>0</sub>) = (Compost 0% + Soil 0%), (T<sub>1</sub>) = (Compost 25% + Soil 75%), (T<sub>2</sub>) = (Compost 50% + Soil 50%), (T<sub>3</sub>) = (Compost 75% + Soil 25%), (T<sub>4</sub>) = (Compost 100% + Soil 0%) were applied in the growing media. Results demonstrated that plant growth increased with the increment in compost application. In the pot experiment, <i>B. ceiba</i> exhibited its better growth under 75% of compost application, whereas in the field experiment, 100% compost was helpful for the best production of <i>B. ceiba</i>. Overall, positive effects of compost were observed for the growth of <i>B. ceiba</i>. The plant growth was increased greatly in response to the better content of organic fertilizer, and it was determined that compost enhances soil fertility. It should be implemented as organic fertilizer in agroforestry operations for optimizing plant growth and yield.

MORPHOLOGICAL AND BIOCHEMICAL RESPOSES OF COW PEA (CV. PUSA BARSATI) GROWN ON FLY ASH AMENDED SOIL IN PRESENCE AND ABSENCE OF MELOIDOGYNE JAVANICA AND RHIZOBIUM LEGUMINOSARUM

1970 ◽  
Vol 17 ◽  
pp. 17-22 ◽  
Author(s):  
Kamal Singh ◽  
A. A. Khan ◽  
Iram Khan ◽  
Rose Rizvi ◽  
M. Saquib
Keyword(s):  
Fly Ash ◽  
Plant Growth ◽  
Rhizobium Leguminosarum ◽  
Growth Yield ◽  
Maximum Growth ◽  
Meloidogyne Javanica ◽  
Growth And Yield ◽  
Negative Effects ◽  
Positive Effects ◽  
Insignificant Difference

Plant growth, yield, pigment and protein content of cow-pea were increased significantly at lower levels (20 and 40%) of fly ash but reverse was true at higher levels (80 and 100%). Soil amended by 60% fly ash could cause suppression in growth and yield in respect to 40% fly ash treated cow-pea plants but former was found at par with control (fly ash untreated plants). Maximum growth occurred in plants grown in soil amended with 40% fly ash. Nitrogen content of cow-pea was suppressed progressively in increasing levels of fly ash. Moreover,  Rhizobium leguminosarum  influenced the growth and yield positively but Meloidogyne javanica caused opposite effects particularly at 20 and 40% fly ash levels. The positive effects of R. leguminosarum were marked by M. javanica at initial levels. However, at 80 and 100% fly ash levels, the positive and negative effects of R. leguminosarum and/or M. javanica did not appear as insignificant difference persist among such treatments.Key words:  Meloidogyne javanica; Rhizobium leguminosarum; Fly ash; Growth; YieldDOI: 10.3126/eco.v17i0.4098Ecoprint An International Journal of Ecology Vol. 17, 2010 Page: 17-22 Uploaded date: 28 December, 2010  

scholarly journals Improving Nitrogen and Phosphorus Efficiency for Optimal Plant Growth and Yield

2018 ◽  
Author(s):  
Lakesh K. Sharma ◽  
Ahmed A. Zaeen ◽  
Sukhwinder K. Bali ◽  
James D. Dwyer
Keyword(s):  
Plant Growth ◽  
Growth And Yield ◽  
Phosphorus Efficiency ◽  
Nitrogen And Phosphorus

Effect of Biological Organic Fertilizer on Plant Growth and Yield of Chinese Kale

2011 ◽  
Vol 142 ◽  
pp. 175-179 ◽  
Author(s):  
Shi Wei Song ◽  
Hai Da Li ◽  
Ri Yuan Chen ◽  
Guang Wen Sun ◽  
Hou Cheng Liu
Keyword(s):  
Plant Growth ◽  
Organic Fertilizer ◽  
Growth And Yield ◽  
Brassica Alboglabra ◽  
Chinese Kale ◽  
Medium Level ◽  
Use Efficiency ◽  
High Level ◽  
High Fertilization ◽  
Level Medium

A substrate culture experiment was conducted to study the effect of different biological organic fertilizer levels (control: zero fertilization, low level, medium level and high level) on plant growth and yield of Chinese kale (Brassica alboglabra Bailey). Results showed that compared with control, treatments of medium and high fertilization increased the leaf number, plant height, stem diameter, yield and plant dry matter of Chinese kale. Thus they promoted plant growth. The fertilizer utilization ratio of Chinese kale was the lowest for low fertilization treatment, and it was the highest for medium fertilization treatment, while it was decreased for high fertilization treatment. The treatment of medium level fertilization (30g/plant) promoted plant growth and increased the yield of Chinese kale; also it had the highest fertilizer use efficiency. So it was the appropriate organic fertilization amount for Chinese kale production.

scholarly journals Effect of Compost Application on the Growth of Acacia nilotica

2019 ◽  
Vol 52 (1) ◽  
pp. 66-73
Author(s):  
H.M.U. Saqib ◽  
I. Ahmad ◽  
M.H.U. Rashid ◽  
T.H. Farooq ◽  
M. Asif ◽  
...  
Keyword(s):  
Plant Height ◽  
Biomass Production ◽  
Field Trial ◽  
Organic Fertilizer ◽  
Acacia Nilotica ◽  
Growth And Yield ◽  
Positive Effects ◽  
Forestry Practices ◽  
Compost Application ◽  
Pot Trial

Abstract Acacia nilotica is an important agroforestry specie, which is used in both compact and linear forms. The objective of the current study was to evaluate the effect of compost on the growth performance and biomass production of A. nilotica. Completely randomized design (CRD) was used to analyze the variations among several growth morphological traits. Two parallel trials, pot trial (seedlings), field trial (saplings) were conducted simultaneously. Compost and litter mixture were applied in mentioned trials. Following treatments were used: T0 – control; T1 - 25% of compost and 75% of nursery soil; T2 - mixture of 50% nursery soil and 50% compost; T3 - mixture of 75% compost and 25% of nursery soil; T4 - where 100% compost was applied. Increase in plant growth was observed with the increases in the amount of compost mixture. In field trial maximum plant height, shoot length, root length, rootshoot ratio and biomass production was observed when 100% compost level was applied, while minimum was observed without any compost appli-cation. In pot trials, the maximum plant height, rootshoot ratio and biomass production was recorded when 75% compost level was applied. Overall, Acacia performed better with 100% of compost application in field trail and 75% of compost application in pot trial. The results of this study demonstrated the positive effects of compost on the growth of Acacia. The seedling development was improved considerably with different levels having greater percentage of organic fertilizer and it was concluded that compost improves soil fertility and it should be used as organic fertilizer in farming and forestry practices for improving crop growth and yield.

scholarly journals Effects of Inoculations with Mycorrhizal Fungi of Soilless Potting Mixes During Transplant Production on Watermelon Growth and Early Fruit Yield

HortScience ◽  
2008 ◽  
Vol 43 (2) ◽  
pp. 354-360 ◽  
Author(s):  
Andreas Westphal ◽  
Nicole L. Snyder ◽  
Lijuan Xing ◽  
James J. Camberato
Keyword(s):  
Plant Growth ◽  
Mycorrhizal Fungi ◽  
Citrullus Lanatus ◽  
The United States ◽  
Crop Productivity ◽  
Fruit Production ◽  
Fruit Yield ◽  
Infested Soil ◽  
Positive Effects ◽  
And Function

Watermelon, Citrullus lanatus (Thunb.) Matsum. & Nakai, crops are continuously exposed to soilborne diseases. In many areas of the United States, greenhouse-raised watermelon seedlings are transplanted to the field to allow for early crop establishment and early fruit production. This practice can result in weakened root systems, which potentially make the plant prone to premature senescence and reduce crop productivity. Mycorrhizal fungi have been reported to improve plant growth in many crops through enhanced root growth and function. We hypothesized that amending potting mixes with commercial inocula of mycorrhizal fungi during seeding of watermelon in a greenhouse would improve watermelon production when seedlings were transplanted to the field. Colonization of watermelon roots with mycorrhizal fungi from three commercial formulations was compared with the colonization of onion roots to confirm the efficacy of the mycorrhizae. Two inocula of mycorrhizal fungi that resulted in colonization of watermelon roots were tested in the field and glasshouse for their potential to improve watermelon production. MycoApply improved early plant growth in two tests, one under Meloidogyne incognita-infested conditions in loamy sand and another at two phosphorus fertilizer levels (0 or 22 kg·ha−1 P) in a loam soil. Mycor Vam Mini plug improved early fruit yield in soil infested with M. incognita. Application of Myconate (formononetin), a potential enhancer of colonization with mycorrhizae, increased early fruit yield in M. incognita-infested soil. Myconate had positive effects when potting mixes were not amended with inoculum of mycorrhizal fungi, but reduced watermelon growth when mycorrhizal fungi were supplied in the potting mix. In glasshouse tests, inoculation with mycorrhizal fungi did not suppress disease. Mycorrhizal fungi inoculations improved early plant establishment and increased the most valuable early fruit yield under some environmental stress conditions but did not increase total fruit yields.

scholarly journals Effect of Biostimulants on Yield and Quality of Cherry Tomatoes Grown in Fertile and Stressed Soils

HortScience ◽  
2021 ◽  
pp. 1-10
Author(s):  
Metin Turan ◽  
Ertan Yildirim ◽  
Melek Ekinci ◽  
Sanem Argin
Keyword(s):  
Plant Growth ◽  
Mineral Content ◽  
Organic Matter Content ◽  
Growth Yield ◽  
Matter Content ◽  
Growth And Yield ◽  
Cherry Tomato ◽  
Negative Effects ◽  
Positive Effects ◽  
Different Characteristics

Plant biostimulants are microorganisms (PGPR) and/or products obtained from different organic substances that positively affect plant growth and efficiency and reduce the negative effects of abiotic challenges. Effects of biostimulants on the plant growth, yield, mineral content, antioxidant enzyme activity, H2O2, malondialdehyde (MDA), sucrose, and proline contents of cherry tomato (Solanum lycopersicum var. cerasiforme L.) grown in soils with two different characteristics were investigated during a pot study under greenhouse conditions. Soil I was a fertile routinely vegetable-cultivated soil. Soil II had high salinity, high CaCO3 content, and low organic matter content. Commercial biostimulant products Powhumus® (PH), Huminbio Microsense Seed® (SC), Huminbio Microsense Bio® (RE), and Fulvagra® (FU) were used as seed coatings and/or drench solutions. All biostimulant treatments improved the plant growth and yield compared with the control in both soils. All biostimulant applications were more effective in soil II than in soil I. RE was the most effective application for mineral content in soil I, whereas FU was the most effective in soil II. Antioxidant activity, H2O2, MDA, and proline contents were decreased in both soils when biostimulants were used compared with the control. Peroxide (POD) activity was greater with SC1 in soil II. The RE treatment increased the sucrose content in soil II. In conclusion, single and combined use of high-purity fulvic acid and PGPR had positive effects on the growth of cherry tomato in fertile soil and under stressed conditions.

scholarly journals Growth and yield response of spring wheat (Triticum aestivum L.) to inoculation with rhizobacteria

2011 ◽  
Vol 52 (No. 3) ◽  
pp. 111-118 ◽  
Author(s):  
A. Salantur ◽  
A. Ozturk ◽  
S. Akten
Keyword(s):  
Spring Wheat ◽  
Wheat Yield ◽  
Greenhouse Experiment ◽  
Growth And Yield ◽  
Yield Response ◽  
Total Biomass ◽  
Total N ◽  
Local Strains ◽  
Positive Effects ◽  
N Yield

The growth and yield response of spring wheat to inoculation with foreign and local rhizobacteria of Erzurum (Turkey) origin was studied. At the first stage of the research, a greenhouse experiment was carried out with wheat cv. Kirik using 75 local bacterial strains isolated from the soil with 6 foreign bacteria, and a control. According to results of the greenhouse experiment 9 local strains were identified. At the second stage, the response of wheat cv.&nbsp;Kirik to 20 treatments (9 local strains, 6 foreign bacteria, 4 levels of N, and a control) was investigated in Erzurum field conditions. Seventeen strains had significant positive effects on tiller number per plant, 47 strains on plant height, one strain on dry matter yield, and 28 strains on plant protein content in the greenhouse experiment. Inoculation with certain rhizobacteria clearly benefited growth and increased the grain and N-yield of field grown wheat. The effects of local strains were observed to be in general superior to those of foreign strains. Inoculation with the local Strain No. 19, 73, and 82 increased total biomass by 18.7, 18.1, and 19.9%; grain yield by 18.6, 17.7, and 18.0%; total N-yield by 27.5, 24.3 and 26.0%, respectively, as compared to control. In conclusion, Strain No. 19, 73, and 82 can be a suitable biofertilizer for spring wheat cultivation in areas with similar conditions as in Erzurum. Inoculation with these strains may lead both to increases in wheat yield and savings of nitrogen fertilizer.

Effects on Plant Growth of Material from Hydrothermal Humification Process of Biomass

2011 ◽  
Vol 322 ◽  
pp. 43-46
Author(s):  
Shu Qing Guo ◽  
Xiang Yuan Dong
Keyword(s):  
Seed Germination ◽  
Plant Growth ◽  
Root Growth ◽  
Root Elongation ◽  
Organic Fertilizer ◽  
Incubation Experiment ◽  
Negative Effects ◽  
Plant Seed ◽  
Positive Effects ◽  
Wet Weight

Hydrothermal humification (HTH) is a novel way to treat biomass in order to produce soil conditioner or organic fertilizer. A plant seed germination technique was used to assess the effect of HTH material derived from garden waste on seed germination, root elongation and germination index (GI) of cucumber at different stages of incubation. The incubation experiment was carried out with the mixture of HTH material and soil at a ratio of 1:3, 1:5 and 1:10 (HTH material:soil, wet weight) in soil. The results showed there are direct positive effects of the HTH material on seed germination and root growth. GI all were over 80%. High addition rates had non significantly negative effects on plant growth.

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